Nate Air Conditioning And Heat Pump Exam 2023

Using a voltmeter, how does the technician determine voltage drop on the outdoor unit of a heat pump? {Ans: with the outdoor unit not operating and then with the outdoor unit operating}what does a test of the compressor oil after a burnout indicate? {Ans: excessive acidity}What type of blower is most commonly used in a residential system {Ans: forward curved centrifugal fan}The common suction line on a heat pump is connected between the: {Ans: Reversing valve and the compressor}What type of flame is recommended for brazing refrigerant piping? {Ans: Neutral flame}A step down transformer has a rating of 40 VA. Its primary voltage is 120 V with a secondary voltage of 24 V. This transformer must not be connected to a load above what maximum current draw. {Ans: 1.7 amps}